Portal 2 achievements
908
(510)

Portal 2

4.6 from 450 votes

There are a maximum of 51 Portal 2 achievements worth 908

10,302 tracked gamers have this game, 660 have completed it (6.41%)

Achievement Details

You Saved Science in Portal 2

You Saved Science17

Complete all test chambers in all courses of co-op

  • Unlocked by 3,633 tracked gamers (35% - TSA Ratio = 1.68) 10,319  
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